| January 2018 |
Registered as a Underground Safe Impact Assessment Specialized Institute |
| December 2016 |
Registered as a Safety Analysis Specialized Institute (Architecture) |
| October 2016 |
Certification of ISO9001 / ISO14001 |
| June 2016 |
Registered as a Construction Business [Facility Maintenance Management : Gyeongsan, Gyeongbuk 2016-29-3] |
| November 2015 |
Moving of Office Building
|
| March 2015 |
Registered as Engineering for the construction enterprise [DesignㆍProject Management(General)[Gyeongbuk-2-51ho]] |
| February 2013 |
Registered as General Traffic Safety Audit Institution of Traffic Facility Installer |
| November 2011 |
Registered as Electrical Design and Construction Supervision |
| June 2010 |
Registered as an Agency for Feasibility Study of Public Traffic Facility Development Project |
| September 2007 |
Registered as an Agency for Disaster Prevention Measurement Establishment |
| July 2007 |
Registered as a Safety Analysis Specialized Institute |
| June 2005 |
Registration of International Contractor |
| May 2000 |
Registered as a Disaster Impact Assessment Agency |
| November 1999 |
Registered as an Environmental Impact Assessment Agency |
| May 1997 |
Registered as Design and Construction Supervision Professional Company |
| October 1996 |
Established Technology Institute |
| October 1996 |
Registration of Traffic Impact Assessment Agency |
| August 1994 |
Registered as a Civil Engineering and Construction Supervision Professional Company |
| May 1994 |
Registered as Public Surveying Business |
| July 1993 |
Reported as an Engineering Activity Entity |
| November 1991 |
Registered as Specialized Technology Service |
| September 1991 |
Established DONGSUNG Engineering Co., Ltd. |